diff options
Diffstat (limited to 'REORG.TODO/sunrpc/xdr_stdio.c')
| -rw-r--r-- | REORG.TODO/sunrpc/xdr_stdio.c | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/REORG.TODO/sunrpc/xdr_stdio.c b/REORG.TODO/sunrpc/xdr_stdio.c new file mode 100644 index 0000000000..6ab514b664 --- /dev/null +++ b/REORG.TODO/sunrpc/xdr_stdio.c @@ -0,0 +1,197 @@ +/* + * xdr_stdio.c, XDR implementation on standard i/o file. + * + * Copyright (c) 2010, Oracle America, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * * Neither the name of the "Oracle America, Inc." nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE + * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * This set of routines implements a XDR on a stdio stream. + * XDR_ENCODE serializes onto the stream, XDR_DECODE de-serializes + * from the stream. + */ + +#include <rpc/types.h> +#include <stdio.h> +#include <rpc/xdr.h> + +#include <libio/iolibio.h> +#include <shlib-compat.h> + +#define fflush(s) _IO_fflush (s) +#define fread(p, m, n, s) _IO_fread (p, m, n, s) +#define ftell(s) _IO_ftell (s) +#define fwrite(p, m, n, s) _IO_fwrite (p, m, n, s) + +static bool_t xdrstdio_getlong (XDR *, long *); +static bool_t xdrstdio_putlong (XDR *, const long *); +static bool_t xdrstdio_getbytes (XDR *, caddr_t, u_int); +static bool_t xdrstdio_putbytes (XDR *, const char *, u_int); +static u_int xdrstdio_getpos (const XDR *); +static bool_t xdrstdio_setpos (XDR *, u_int); +static int32_t *xdrstdio_inline (XDR *, u_int); +static void xdrstdio_destroy (XDR *); +static bool_t xdrstdio_getint32 (XDR *, int32_t *); +static bool_t xdrstdio_putint32 (XDR *, const int32_t *); + +/* + * Ops vector for stdio type XDR + */ +static const struct xdr_ops xdrstdio_ops = +{ + xdrstdio_getlong, /* deserialize a long int */ + xdrstdio_putlong, /* serialize a long int */ + xdrstdio_getbytes, /* deserialize counted bytes */ + xdrstdio_putbytes, /* serialize counted bytes */ + xdrstdio_getpos, /* get offset in the stream */ + xdrstdio_setpos, /* set offset in the stream */ + xdrstdio_inline, /* prime stream for inline macros */ + xdrstdio_destroy, /* destroy stream */ + xdrstdio_getint32, /* deserialize a int */ + xdrstdio_putint32 /* serialize a int */ +}; + +/* + * Initialize a stdio xdr stream. + * Sets the xdr stream handle xdrs for use on the stream file. + * Operation flag is set to op. + */ +void +xdrstdio_create (XDR *xdrs, FILE *file, enum xdr_op op) +{ + xdrs->x_op = op; + /* We have to add the const since the `struct xdr_ops' in `struct XDR' + is not `const'. */ + xdrs->x_ops = (struct xdr_ops *) &xdrstdio_ops; + xdrs->x_private = (caddr_t) file; + xdrs->x_handy = 0; + xdrs->x_base = 0; +} + +/* + * Destroy a stdio xdr stream. + * Cleans up the xdr stream handle xdrs previously set up by xdrstdio_create. + */ +static void +xdrstdio_destroy (XDR *xdrs) +{ + (void) fflush ((FILE *) xdrs->x_private); + /* xx should we close the file ?? */ +}; + +static bool_t +xdrstdio_getlong (XDR *xdrs, long *lp) +{ + u_int32_t mycopy; + + if (fread ((caddr_t) &mycopy, 4, 1, (FILE *) xdrs->x_private) != 1) + return FALSE; + *lp = (long) ntohl (mycopy); + return TRUE; +} + +static bool_t +xdrstdio_putlong (XDR *xdrs, const long *lp) +{ + int32_t mycopy = htonl ((u_int32_t) *lp); + + if (fwrite ((caddr_t) &mycopy, 4, 1, (FILE *) xdrs->x_private) != 1) + return FALSE; + return TRUE; +} + +static bool_t +xdrstdio_getbytes (XDR *xdrs, const caddr_t addr, u_int len) +{ + if ((len != 0) && (fread (addr, (int) len, 1, + (FILE *) xdrs->x_private) != 1)) + return FALSE; + return TRUE; +} + +static bool_t +xdrstdio_putbytes (XDR *xdrs, const char *addr, u_int len) +{ + if ((len != 0) && (fwrite (addr, (int) len, 1, + (FILE *) xdrs->x_private) != 1)) + return FALSE; + return TRUE; +} + +static u_int +xdrstdio_getpos (const XDR *xdrs) +{ + return (u_int) ftell ((FILE *) xdrs->x_private); +} + +static bool_t +xdrstdio_setpos (XDR *xdrs, u_int pos) +{ + return fseek ((FILE *) xdrs->x_private, (long) pos, 0) < 0 ? FALSE : TRUE; +} + +static int32_t * +xdrstdio_inline (XDR *xdrs, u_int len) +{ + /* + * Must do some work to implement this: must insure + * enough data in the underlying stdio buffer, + * that the buffer is aligned so that we can indirect through a + * long *, and stuff this pointer in xdrs->x_buf. Doing + * a fread or fwrite to a scratch buffer would defeat + * most of the gains to be had here and require storage + * management on this buffer, so we don't do this. + */ + return NULL; +} + +static bool_t +xdrstdio_getint32 (XDR *xdrs, int32_t *ip) +{ + int32_t mycopy; + + if (fread ((caddr_t) &mycopy, 4, 1, (FILE *) xdrs->x_private) != 1) + return FALSE; + *ip = ntohl (mycopy); + return TRUE; +} + +static bool_t +xdrstdio_putint32 (XDR *xdrs, const int32_t *ip) +{ + int32_t mycopy = htonl (*ip); + + ip = &mycopy; + if (fwrite ((caddr_t) ip, 4, 1, (FILE *) xdrs->x_private) != 1) + return FALSE; + return TRUE; +} +#ifdef EXPORT_RPC_SYMBOLS +libc_hidden_def (xdrstdio_create) +#else +libc_hidden_nolink_sunrpc (xdrstdio_create, GLIBC_2_0) +#endif |